Help with optional to-one relationship
Help with optional to-one relationship
- Subject: Help with optional to-one relationship
- From: Amiel Montecillo <email@hidden>
- Date: Fri, 28 Aug 2009 10:28:01 +0800
Hello,
I have a to-one relationship that is giving me problems when updating the destination entity.
class Seo
{
id; <- PK
title;
description;
state() <- reverse to-one relationship to State
}
class State
{
id; <- PK
name;
seoid; <- FK to Seo (id)
seo(); <- optional to-one relationship to Seo
}
When I first enter an Seo to a State, all seems fine, all properties of Seo are saved and are related to the corresponding State. But then, when I update it I get this exception.
Unable to map destination State for relationship state in entity Seo. To one relationships must be joined on the primary key of the destination.
java.lang.IllegalArgumentException: Unable to map destination State for relationship state in entity Seo. To one relationships must be joined on the primary key of the destination.
at com.webobjects.eoaccess.EORelationship._sourceRowToForeignKeyMapping(EORelationship.java:1134)
at com.webobjects.eoaccess.EORelationship._foreignKeyForSourceRow(EORelationship.java:1148)
at com.webobjects.eoaccess.EODatabaseContext._objectFaultWithSnapshotRelationshipEditingContext(EODatabaseContext.java:2346)
at com.webobjects.eoaccess.EODatabaseContext._fireDeferredFaultWithSourceObject(EODatabaseContext.java:2401)
at com.webobjects.eoaccess.EOAccessDeferredFaultHandler.createFaultForDeferredFault(EOAccessDeferredFaultHandler.java:49)
at com.webobjects.eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1279)
at er.extensions.eof.ERXGenericRecord.willReadRelationship(ERXGenericRecord.java:358)
at com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_LazyGenericRecordBinding.valueInObject(_EOMutableKnownKeyDictionary.java:614)
at com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634)
at com.webobjects.eocontrol.EOCustomObject.snapshot(EOCustomObject.java:525)
at com.webobjects.eocontrol.EOEditingContext.objectWillChange(EOEditingContext.java:2813)
at er.extensions.eof.ERXEC.objectWillChange(ERXEC.java:769)
at com.webobjects.eocontrol.EOObserverCenter.notifyObserversObjectWillChange(EOObserverCenter.java:399)
at com.webobjects.eocontrol.EOCustomObject.willChange(EOCustomObject.java:333)
at com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_GenericRecordBinding.setValueInObject(_EOMutableKnownKeyDictionary.java:579)
at com.webobjects.eocontrol.EOCustomObject.takeStoredValueForKey(EOCustomObject.java:1663)
at er.extensions.eof.ERXGenericRecord.takeStoredValueForKey(ERXGenericRecord.java:1290)
at com.bossing.wo.bids.db._Seo.setDescription(_Seo.java:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.setMethodValue(NSKeyValueCoding.java:643)
at com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.setValueInObject(NSKeyValueCoding.java:1150)
at com.webobjects.eocontrol.EOCustomObject.takeValueForKey(EOCustomObject.java:1529)
at er.extensions.eof.ERXGenericRecord.takeValueForKey(ERXGenericRecord.java:1282)
at com.webobjects.foundation.NSKeyValueCoding$Utility.takeValueForKey(NSKeyValueCoding.java:469)
at com.webobjects.foundation.NSValidation$DefaultImplementation.validateTakeValueForKeyPath(NSValidation.java:679)
at com.webobjects.eocontrol.EOCustomObject.validateTakeValueForKeyPath(EOCustomObject.java:1335)
at com.webobjects.foundation.NSValidation$Utility.validateTakeValueForKeyPath(NSValidation.java:502)
at com.webobjects.foundation.NSValidation$DefaultImplementation.validateTakeValueForKeyPath(NSValidation.java:687)
at com.webobjects.eocontrol.EOCustomObject.validateTakeValueForKeyPath(EOCustomObject.java:1335)
at com.webobjects.foundation.NSValidation$Utility.validateTakeValueForKeyPath(NSValidation.java:502)
Is my entity modeling correct? Any ideas how I can resolve this?
Thanks,
Amiel
--
socket error: unable to connect to 127.0.0.1
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden